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Finding the Fourth Proportional to 651,138.40, 976,880.40 and 230,370.40

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Solution

The fourth proportional to 651,138.40, 976,880.40 and 230,370.40 is: 345,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,138.40 : 976,880.40 = 230,370.40 : x
  2. Step 2: Convert to fraction form
    651,138.40/976,880.40 = 230,370.40/x
  3. Step 3: Cross multiply
    651,138.40x = 976,880.40 × 230,370.40
  4. Step 4: Simplify right side
    651,138.40x = 225,044,328,500.16
  5. Step 5: Solve for x
    x = 225,044,328,500.16/651,138.40
  6. Step 6: Final answer
    x = 345,616.74

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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.