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Finding the Fourth Proportional to 343,750.80, 515,502.68 and 119,050.72

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Solution

The fourth proportional to 343,750.80, 515,502.68 and 119,050.72 is: 178,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,750.80 : 515,502.68 = 119,050.72 : x
  2. Step 2: Convert to fraction form
    343,750.80/515,502.68 = 119,050.72/x
  3. Step 3: Cross multiply
    343,750.80x = 515,502.68 × 119,050.72
  4. Step 4: Simplify right side
    343,750.80x = 61,370,965,215.93
  5. Step 5: Solve for x
    x = 61,370,965,215.93/343,750.80
  6. Step 6: Final answer
    x = 178,533.30

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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.