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Finding the Fourth Proportional to 288,554.79, 398,203.43 and 159,501.74

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Solution

The fourth proportional to 288,554.79, 398,203.43 and 159,501.74 is: 220,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,554.79 : 398,203.43 = 159,501.74 : x
  2. Step 2: Convert to fraction form
    288,554.79/398,203.43 = 159,501.74/x
  3. Step 3: Cross multiply
    288,554.79x = 398,203.43 × 159,501.74
  4. Step 4: Simplify right side
    288,554.79x = 63,514,139,958.97
  5. Step 5: Solve for x
    x = 63,514,139,958.97/288,554.79
  6. Step 6: Final answer
    x = 220,111.20

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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.