Home / 307,312.28-423,125.91-261,281.40

Finding the Fourth Proportional to 307,312.28, 423,125.91 and 261,281.40

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Solution

The fourth proportional to 307,312.28, 423,125.91 and 261,281.40 is: 359,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,312.28 : 423,125.91 = 261,281.40 : x
  2. Step 2: Convert to fraction form
    307,312.28/423,125.91 = 261,281.40/x
  3. Step 3: Cross multiply
    307,312.28x = 423,125.91 × 261,281.40
  4. Step 4: Simplify right side
    307,312.28x = 110,554,930,141.07
  5. Step 5: Solve for x
    x = 110,554,930,141.07/307,312.28
  6. Step 6: Final answer
    x = 359,747.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.