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Finding the Fourth Proportional to 370,237.80, 554,967.90 and 145,511.40

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Solution

The fourth proportional to 370,237.80, 554,967.90 and 145,511.40 is: 218,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,237.80 : 554,967.90 = 145,511.40 : x
  2. Step 2: Convert to fraction form
    370,237.80/554,967.90 = 145,511.40/x
  3. Step 3: Cross multiply
    370,237.80x = 554,967.90 × 145,511.40
  4. Step 4: Simplify right side
    370,237.80x = 80,754,156,084.06
  5. Step 5: Solve for x
    x = 80,754,156,084.06/370,237.80
  6. Step 6: Final answer
    x = 218,114.29

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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.