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Finding the Fourth Proportional to 369,571.47, 554,356.80 and 89,088.72

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Solution

The fourth proportional to 369,571.47, 554,356.80 and 89,088.72 is: 133,632.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,571.47 : 554,356.80 = 89,088.72 : x
  2. Step 2: Convert to fraction form
    369,571.47/554,356.80 = 89,088.72/x
  3. Step 3: Cross multiply
    369,571.47x = 554,356.80 × 89,088.72
  4. Step 4: Simplify right side
    369,571.47x = 49,386,937,735.30
  5. Step 5: Solve for x
    x = 49,386,937,735.30/369,571.47
  6. Step 6: Final answer
    x = 133,632.98

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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.