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Finding the Fourth Proportional to 292,902.02, 439,353.04 and 105,869.78

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Solution

The fourth proportional to 292,902.02, 439,353.04 and 105,869.78 is: 158,804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,902.02 : 439,353.04 = 105,869.78 : x
  2. Step 2: Convert to fraction form
    292,902.02/439,353.04 = 105,869.78/x
  3. Step 3: Cross multiply
    292,902.02x = 439,353.04 × 105,869.78
  4. Step 4: Simplify right side
    292,902.02x = 46,514,209,687.13
  5. Step 5: Solve for x
    x = 46,514,209,687.13/292,902.02
  6. Step 6: Final answer
    x = 158,804.67

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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.