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Finding the Fourth Proportional to 260,391.69, 390,587.54 and 247,094.73

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Solution

The fourth proportional to 260,391.69, 390,587.54 and 247,094.73 is: 370,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,391.69 : 390,587.54 = 247,094.73 : x
  2. Step 2: Convert to fraction form
    260,391.69/390,587.54 = 247,094.73/x
  3. Step 3: Cross multiply
    260,391.69x = 390,587.54 × 247,094.73
  4. Step 4: Simplify right side
    260,391.69x = 96,512,121,502.19
  5. Step 5: Solve for x
    x = 96,512,121,502.19/260,391.69
  6. Step 6: Final answer
    x = 370,642.10

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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.