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Finding the Fourth Proportional to 360,920.32, 497,955.52 and 209,988.16

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Solution

The fourth proportional to 360,920.32, 497,955.52 and 209,988.16 is: 289,717.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,920.32 : 497,955.52 = 209,988.16 : x
  2. Step 2: Convert to fraction form
    360,920.32/497,955.52 = 209,988.16/x
  3. Step 3: Cross multiply
    360,920.32x = 497,955.52 × 209,988.16
  4. Step 4: Simplify right side
    360,920.32x = 104,564,763,406.64
  5. Step 5: Solve for x
    x = 104,564,763,406.64/360,920.32
  6. Step 6: Final answer
    x = 289,717.03

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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.