Home / 210,177.12-315,281.20-60,411.36

Finding the Fourth Proportional to 210,177.12, 315,281.20 and 60,411.36

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Solution

The fourth proportional to 210,177.12, 315,281.20 and 60,411.36 is: 90,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,177.12 : 315,281.20 = 60,411.36 : x
  2. Step 2: Convert to fraction form
    210,177.12/315,281.20 = 60,411.36/x
  3. Step 3: Cross multiply
    210,177.12x = 315,281.20 × 60,411.36
  4. Step 4: Simplify right side
    210,177.12x = 19,046,566,074.43
  5. Step 5: Solve for x
    x = 19,046,566,074.43/210,177.12
  6. Step 6: Final answer
    x = 90,621.50

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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.