Home / 236,478.10-326,340.68-129,050.50

Finding the Fourth Proportional to 236,478.10, 326,340.68 and 129,050.50

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Solution

The fourth proportional to 236,478.10, 326,340.68 and 129,050.50 is: 178,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,478.10 : 326,340.68 = 129,050.50 : x
  2. Step 2: Convert to fraction form
    236,478.10/326,340.68 = 129,050.50/x
  3. Step 3: Cross multiply
    236,478.10x = 326,340.68 × 129,050.50
  4. Step 4: Simplify right side
    236,478.10x = 42,114,427,924.34
  5. Step 5: Solve for x
    x = 42,114,427,924.34/236,478.10
  6. Step 6: Final answer
    x = 178,090.18

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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.