Home / 398,384.03-549,769.98-217,095.90

Finding the Fourth Proportional to 398,384.03, 549,769.98 and 217,095.90

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Solution

The fourth proportional to 398,384.03, 549,769.98 and 217,095.90 is: 299,592.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,384.03 : 549,769.98 = 217,095.90 : x
  2. Step 2: Convert to fraction form
    398,384.03/549,769.98 = 217,095.90/x
  3. Step 3: Cross multiply
    398,384.03x = 549,769.98 × 217,095.90
  4. Step 4: Simplify right side
    398,384.03x = 119,352,808,601.08
  5. Step 5: Solve for x
    x = 119,352,808,601.08/398,384.03
  6. Step 6: Final answer
    x = 299,592.36

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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.