Home / 434,581.47-651,931.74-135,006.21

Finding the Fourth Proportional to 434,581.47, 651,931.74 and 135,006.21

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Solution

The fourth proportional to 434,581.47, 651,931.74 and 135,006.21 is: 202,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,581.47 : 651,931.74 = 135,006.21 : x
  2. Step 2: Convert to fraction form
    434,581.47/651,931.74 = 135,006.21/x
  3. Step 3: Cross multiply
    434,581.47x = 651,931.74 × 135,006.21
  4. Step 4: Simplify right side
    434,581.47x = 88,014,833,396.11
  5. Step 5: Solve for x
    x = 88,014,833,396.11/434,581.47
  6. Step 6: Final answer
    x = 202,527.81

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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.