Home / 287,156.30-430,781.09-97,633.58

Finding the Fourth Proportional to 287,156.30, 430,781.09 and 97,633.58

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Solution

The fourth proportional to 287,156.30, 430,781.09 and 97,633.58 is: 146,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,156.30 : 430,781.09 = 97,633.58 : x
  2. Step 2: Convert to fraction form
    287,156.30/430,781.09 = 97,633.58/x
  3. Step 3: Cross multiply
    287,156.30x = 430,781.09 × 97,633.58
  4. Step 4: Simplify right side
    287,156.30x = 42,058,697,370.93
  5. Step 5: Solve for x
    x = 42,058,697,370.93/287,156.30
  6. Step 6: Final answer
    x = 146,466.22

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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.