Home / 287,748.54-397,093.23-160,421.58

Finding the Fourth Proportional to 287,748.54, 397,093.23 and 160,421.58

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Solution

The fourth proportional to 287,748.54, 397,093.23 and 160,421.58 is: 221,381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,748.54 : 397,093.23 = 160,421.58 : x
  2. Step 2: Convert to fraction form
    287,748.54/397,093.23 = 160,421.58/x
  3. Step 3: Cross multiply
    287,748.54x = 397,093.23 × 160,421.58
  4. Step 4: Simplify right side
    287,748.54x = 63,702,323,363.90
  5. Step 5: Solve for x
    x = 63,702,323,363.90/287,748.54
  6. Step 6: Final answer
    x = 221,381.92

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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.