Home / 287,366.40-396,550.04-158,279.76

Finding the Fourth Proportional to 287,366.40, 396,550.04 and 158,279.76

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Solution

The fourth proportional to 287,366.40, 396,550.04 and 158,279.76 is: 218,417.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,366.40 : 396,550.04 = 158,279.76 : x
  2. Step 2: Convert to fraction form
    287,366.40/396,550.04 = 158,279.76/x
  3. Step 3: Cross multiply
    287,366.40x = 396,550.04 × 158,279.76
  4. Step 4: Simplify right side
    287,366.40x = 62,765,845,159.19
  5. Step 5: Solve for x
    x = 62,765,845,159.19/287,366.40
  6. Step 6: Final answer
    x = 218,417.48

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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.