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Finding the Fourth Proportional to 385,722.05, 578,675.45 and 160,957.45

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Solution

The fourth proportional to 385,722.05, 578,675.45 and 160,957.45 is: 241,474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,722.05 : 578,675.45 = 160,957.45 : x
  2. Step 2: Convert to fraction form
    385,722.05/578,675.45 = 160,957.45/x
  3. Step 3: Cross multiply
    385,722.05x = 578,675.45 × 160,957.45
  4. Step 4: Simplify right side
    385,722.05x = 93,142,122,558.13
  5. Step 5: Solve for x
    x = 93,142,122,558.13/385,722.05
  6. Step 6: Final answer
    x = 241,474.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.