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Finding the Fourth Proportional to 369,417.28, 553,989.84 and 132,696.40

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Solution

The fourth proportional to 369,417.28, 553,989.84 and 132,696.40 is: 198,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,417.28 : 553,989.84 = 132,696.40 : x
  2. Step 2: Convert to fraction form
    369,417.28/553,989.84 = 132,696.40/x
  3. Step 3: Cross multiply
    369,417.28x = 553,989.84 × 132,696.40
  4. Step 4: Simplify right side
    369,417.28x = 73,512,457,404.58
  5. Step 5: Solve for x
    x = 73,512,457,404.58/369,417.28
  6. Step 6: Final answer
    x = 198,995.72

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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.