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Finding the Fourth Proportional to 508,302.18, 701,459.73 and 281,947.68

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Solution

The fourth proportional to 508,302.18, 701,459.73 and 281,947.68 is: 389,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,302.18 : 701,459.73 = 281,947.68 : x
  2. Step 2: Convert to fraction form
    508,302.18/701,459.73 = 281,947.68/x
  3. Step 3: Cross multiply
    508,302.18x = 701,459.73 × 281,947.68
  4. Step 4: Simplify right side
    508,302.18x = 197,774,943,486.93
  5. Step 5: Solve for x
    x = 197,774,943,486.93/508,302.18
  6. Step 6: Final answer
    x = 389,089.31

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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.