Home / 385,280.10-577,920.15-135,962.10

Finding the Fourth Proportional to 385,280.10, 577,920.15 and 135,962.10

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Solution

The fourth proportional to 385,280.10, 577,920.15 and 135,962.10 is: 203,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,280.10 : 577,920.15 = 135,962.10 : x
  2. Step 2: Convert to fraction form
    385,280.10/577,920.15 = 135,962.10/x
  3. Step 3: Cross multiply
    385,280.10x = 577,920.15 × 135,962.10
  4. Step 4: Simplify right side
    385,280.10x = 78,575,237,226.32
  5. Step 5: Solve for x
    x = 78,575,237,226.32/385,280.10
  6. Step 6: Final answer
    x = 203,943.15

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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.