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Finding the Fourth Proportional to 369,688.80, 554,095.80 and 156,456.30

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Solution

The fourth proportional to 369,688.80, 554,095.80 and 156,456.30 is: 234,499.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,688.80 : 554,095.80 = 156,456.30 : x
  2. Step 2: Convert to fraction form
    369,688.80/554,095.80 = 156,456.30/x
  3. Step 3: Cross multiply
    369,688.80x = 554,095.80 × 156,456.30
  4. Step 4: Simplify right side
    369,688.80x = 86,691,778,713.54
  5. Step 5: Solve for x
    x = 86,691,778,713.54/369,688.80
  6. Step 6: Final answer
    x = 234,499.34

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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.