Home / 287,714.04-397,045.50-160,386.96

Finding the Fourth Proportional to 287,714.04, 397,045.50 and 160,386.96

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Solution

The fourth proportional to 287,714.04, 397,045.50 and 160,386.96 is: 221,334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,714.04 : 397,045.50 = 160,386.96 : x
  2. Step 2: Convert to fraction form
    287,714.04/397,045.50 = 160,386.96/x
  3. Step 3: Cross multiply
    287,714.04x = 397,045.50 × 160,386.96
  4. Step 4: Simplify right side
    287,714.04x = 63,680,920,726.68
  5. Step 5: Solve for x
    x = 63,680,920,726.68/287,714.04
  6. Step 6: Final answer
    x = 221,334.07

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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.