Home / 287,938.90-397,355.41-160,614.42

Finding the Fourth Proportional to 287,938.90, 397,355.41 and 160,614.42

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Solution

The fourth proportional to 287,938.90, 397,355.41 and 160,614.42 is: 221,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,938.90 : 397,355.41 = 160,614.42 : x
  2. Step 2: Convert to fraction form
    287,938.90/397,355.41 = 160,614.42/x
  3. Step 3: Cross multiply
    287,938.90x = 397,355.41 × 160,614.42
  4. Step 4: Simplify right side
    287,938.90x = 63,821,008,711.01
  5. Step 5: Solve for x
    x = 63,821,008,711.01/287,938.90
  6. Step 6: Final answer
    x = 221,647.75

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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.