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Finding the Fourth Proportional to 554,978.40, 832,373.70 and 155,527.25

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Solution

The fourth proportional to 554,978.40, 832,373.70 and 155,527.25 is: 233,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,978.40 : 832,373.70 = 155,527.25 : x
  2. Step 2: Convert to fraction form
    554,978.40/832,373.70 = 155,527.25/x
  3. Step 3: Cross multiply
    554,978.40x = 832,373.70 × 155,527.25
  4. Step 4: Simplify right side
    554,978.40x = 129,456,788,371.46
  5. Step 5: Solve for x
    x = 129,456,788,371.46/554,978.40
  6. Step 6: Final answer
    x = 233,264.55

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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.