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Finding the Fourth Proportional to 298,038.68, 411,276.75 and 170,722.47

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Solution

The fourth proportional to 298,038.68, 411,276.75 and 170,722.47 is: 235,587.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,038.68 : 411,276.75 = 170,722.47 : x
  2. Step 2: Convert to fraction form
    298,038.68/411,276.75 = 170,722.47/x
  3. Step 3: Cross multiply
    298,038.68x = 411,276.75 × 170,722.47
  4. Step 4: Simplify right side
    298,038.68x = 70,214,182,613.57
  5. Step 5: Solve for x
    x = 70,214,182,613.57/298,038.68
  6. Step 6: Final answer
    x = 235,587.48

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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.