Home / 287,420.22-396,652.14-160,095.87

Finding the Fourth Proportional to 287,420.22, 396,652.14 and 160,095.87

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Solution

The fourth proportional to 287,420.22, 396,652.14 and 160,095.87 is: 220,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,420.22 : 396,652.14 = 160,095.87 : x
  2. Step 2: Convert to fraction form
    287,420.22/396,652.14 = 160,095.87/x
  3. Step 3: Cross multiply
    287,420.22x = 396,652.14 × 160,095.87
  4. Step 4: Simplify right side
    287,420.22x = 63,502,369,440.66
  5. Step 5: Solve for x
    x = 63,502,369,440.66/287,420.22
  6. Step 6: Final answer
    x = 220,939.12

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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.