Home / 287,904.36-397,306.10-158,849.48

Finding the Fourth Proportional to 287,904.36, 397,306.10 and 158,849.48

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Solution

The fourth proportional to 287,904.36, 397,306.10 and 158,849.48 is: 219,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,904.36 : 397,306.10 = 158,849.48 : x
  2. Step 2: Convert to fraction form
    287,904.36/397,306.10 = 158,849.48/x
  3. Step 3: Cross multiply
    287,904.36x = 397,306.10 × 158,849.48
  4. Step 4: Simplify right side
    287,904.36x = 63,111,867,385.83
  5. Step 5: Solve for x
    x = 63,111,867,385.83/287,904.36
  6. Step 6: Final answer
    x = 219,211.22

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1.5x scale

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.