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Finding the Fourth Proportional to 357,020.04, 535,156.40 and 120,280.92

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Solution

The fourth proportional to 357,020.04, 535,156.40 and 120,280.92 is: 180,295.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,020.04 : 535,156.40 = 120,280.92 : x
  2. Step 2: Convert to fraction form
    357,020.04/535,156.40 = 120,280.92/x
  3. Step 3: Cross multiply
    357,020.04x = 535,156.40 × 120,280.92
  4. Step 4: Simplify right side
    357,020.04x = 64,369,104,135.89
  5. Step 5: Solve for x
    x = 64,369,104,135.89/357,020.04
  6. Step 6: Final answer
    x = 180,295.49

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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.