Home / 398,330.10-549,688.62-217,043.52

Finding the Fourth Proportional to 398,330.10, 549,688.62 and 217,043.52

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Solution

The fourth proportional to 398,330.10, 549,688.62 and 217,043.52 is: 299,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,330.10 : 549,688.62 = 217,043.52 : x
  2. Step 2: Convert to fraction form
    398,330.10/549,688.62 = 217,043.52/x
  3. Step 3: Cross multiply
    398,330.10x = 549,688.62 × 217,043.52
  4. Step 4: Simplify right side
    398,330.10x = 119,306,352,988.74
  5. Step 5: Solve for x
    x = 119,306,352,988.74/398,330.10
  6. Step 6: Final answer
    x = 299,516.29

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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.