Home / 665,016.18-997,664.56-215,702.16

Finding the Fourth Proportional to 665,016.18, 997,664.56 and 215,702.16

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Solution

The fourth proportional to 665,016.18, 997,664.56 and 215,702.16 is: 323,598.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,016.18 : 997,664.56 = 215,702.16 : x
  2. Step 2: Convert to fraction form
    665,016.18/997,664.56 = 215,702.16/x
  3. Step 3: Cross multiply
    665,016.18x = 997,664.56 × 215,702.16
  4. Step 4: Simplify right side
    665,016.18x = 215,198,400,547.45
  5. Step 5: Solve for x
    x = 215,198,400,547.45/665,016.18
  6. Step 6: Final answer
    x = 323,598.74

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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.