Home / 289,385.04-399,342.06-160,318.23

Finding the Fourth Proportional to 289,385.04, 399,342.06 and 160,318.23

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Solution

The fourth proportional to 289,385.04, 399,342.06 and 160,318.23 is: 221,234.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,385.04 : 399,342.06 = 160,318.23 : x
  2. Step 2: Convert to fraction form
    289,385.04/399,342.06 = 160,318.23/x
  3. Step 3: Cross multiply
    289,385.04x = 399,342.06 × 160,318.23
  4. Step 4: Simplify right side
    289,385.04x = 64,021,812,223.75
  5. Step 5: Solve for x
    x = 64,021,812,223.75/289,385.04
  6. Step 6: Final answer
    x = 221,234.01

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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.