Home / 690,178.30-1,035,302.55-216,868.30

Finding the Fourth Proportional to 690,178.30, 1,035,302.55 and 216,868.30

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Solution

The fourth proportional to 690,178.30, 1,035,302.55 and 216,868.30 is: 325,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,178.30 : 1,035,302.55 = 216,868.30 : x
  2. Step 2: Convert to fraction form
    690,178.30/1,035,302.55 = 216,868.30/x
  3. Step 3: Cross multiply
    690,178.30x = 1,035,302.55 × 216,868.30
  4. Step 4: Simplify right side
    690,178.30x = 224,524,304,004.17
  5. Step 5: Solve for x
    x = 224,524,304,004.17/690,178.30
  6. Step 6: Final answer
    x = 325,313.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.