Home / 309,331.20-464,428.80-197,702.40

Finding the Fourth Proportional to 309,331.20, 464,428.80 and 197,702.40

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Solution

The fourth proportional to 309,331.20, 464,428.80 and 197,702.40 is: 296,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,331.20 : 464,428.80 = 197,702.40 : x
  2. Step 2: Convert to fraction form
    309,331.20/464,428.80 = 197,702.40/x
  3. Step 3: Cross multiply
    309,331.20x = 464,428.80 × 197,702.40
  4. Step 4: Simplify right side
    309,331.20x = 91,818,688,389.12
  5. Step 5: Solve for x
    x = 91,818,688,389.12/309,331.20
  6. Step 6: Final answer
    x = 296,829.70

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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.