Home / 318,664.60-439,769.70-175,437.96

Finding the Fourth Proportional to 318,664.60, 439,769.70 and 175,437.96

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Solution

The fourth proportional to 318,664.60, 439,769.70 and 175,437.96 is: 242,111.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,664.60 : 439,769.70 = 175,437.96 : x
  2. Step 2: Convert to fraction form
    318,664.60/439,769.70 = 175,437.96/x
  3. Step 3: Cross multiply
    318,664.60x = 439,769.70 × 175,437.96
  4. Step 4: Simplify right side
    318,664.60x = 77,152,299,037.81
  5. Step 5: Solve for x
    x = 77,152,299,037.81/318,664.60
  6. Step 6: Final answer
    x = 242,111.30

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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.