Home / 287,897.26-397,298.20-160,572.94

Finding the Fourth Proportional to 287,897.26, 397,298.20 and 160,572.94

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Solution

The fourth proportional to 287,897.26, 397,298.20 and 160,572.94 is: 221,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,897.26 : 397,298.20 = 160,572.94 : x
  2. Step 2: Convert to fraction form
    287,897.26/397,298.20 = 160,572.94/x
  3. Step 3: Cross multiply
    287,897.26x = 397,298.20 × 160,572.94
  4. Step 4: Simplify right side
    287,897.26x = 63,795,340,030.71
  5. Step 5: Solve for x
    x = 63,795,340,030.71/287,897.26
  6. Step 6: Final answer
    x = 221,590.65

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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.