Home / 407,129.15-561,841.35-223,366.52

Finding the Fourth Proportional to 407,129.15, 561,841.35 and 223,366.52

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Solution

The fourth proportional to 407,129.15, 561,841.35 and 223,366.52 is: 308,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,129.15 : 561,841.35 = 223,366.52 : x
  2. Step 2: Convert to fraction form
    407,129.15/561,841.35 = 223,366.52/x
  3. Step 3: Cross multiply
    407,129.15x = 561,841.35 × 223,366.52
  4. Step 4: Simplify right side
    407,129.15x = 125,496,547,141.60
  5. Step 5: Solve for x
    x = 125,496,547,141.60/407,129.15
  6. Step 6: Final answer
    x = 308,247.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.