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Finding the Fourth Proportional to 285,095.76, 427,235.40 and 160,174.32

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Solution

The fourth proportional to 285,095.76, 427,235.40 and 160,174.32 is: 240,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,095.76 : 427,235.40 = 160,174.32 : x
  2. Step 2: Convert to fraction form
    285,095.76/427,235.40 = 160,174.32/x
  3. Step 3: Cross multiply
    285,095.76x = 427,235.40 × 160,174.32
  4. Step 4: Simplify right side
    285,095.76x = 68,432,139,674.93
  5. Step 5: Solve for x
    x = 68,432,139,674.93/285,095.76
  6. Step 6: Final answer
    x = 240,032.12

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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.