Home / 287,871.24-397,572.15-219,155.16

Finding the Fourth Proportional to 287,871.24, 397,572.15 and 219,155.16

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Solution

The fourth proportional to 287,871.24, 397,572.15 and 219,155.16 is: 302,670.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,871.24 : 397,572.15 = 219,155.16 : x
  2. Step 2: Convert to fraction form
    287,871.24/397,572.15 = 219,155.16/x
  3. Step 3: Cross multiply
    287,871.24x = 397,572.15 × 219,155.16
  4. Step 4: Simplify right side
    287,871.24x = 87,129,988,144.79
  5. Step 5: Solve for x
    x = 87,129,988,144.79/287,871.24
  6. Step 6: Final answer
    x = 302,670.00

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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.