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Finding the Fourth Proportional to 260,501.75, 390,748.35 and 83,006.35

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Solution

The fourth proportional to 260,501.75, 390,748.35 and 83,006.35 is: 124,508.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,501.75 : 390,748.35 = 83,006.35 : x
  2. Step 2: Convert to fraction form
    260,501.75/390,748.35 = 83,006.35/x
  3. Step 3: Cross multiply
    260,501.75x = 390,748.35 × 83,006.35
  4. Step 4: Simplify right side
    260,501.75x = 32,434,594,302.02
  5. Step 5: Solve for x
    x = 32,434,594,302.02/260,501.75
  6. Step 6: Final answer
    x = 124,508.16

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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.