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Finding the Fourth Proportional to 369,393.78, 554,304.33 and 156,147.89

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Solution

The fourth proportional to 369,393.78, 554,304.33 and 156,147.89 is: 234,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,393.78 : 554,304.33 = 156,147.89 : x
  2. Step 2: Convert to fraction form
    369,393.78/554,304.33 = 156,147.89/x
  3. Step 3: Cross multiply
    369,393.78x = 554,304.33 × 156,147.89
  4. Step 4: Simplify right side
    369,393.78x = 86,553,452,794.04
  5. Step 5: Solve for x
    x = 86,553,452,794.04/369,393.78
  6. Step 6: Final answer
    x = 234,312.16

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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.