Home / 285,237.63-393,612.95-156,151.35

Finding the Fourth Proportional to 285,237.63, 393,612.95 and 156,151.35

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Solution

The fourth proportional to 285,237.63, 393,612.95 and 156,151.35 is: 215,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,237.63 : 393,612.95 = 156,151.35 : x
  2. Step 2: Convert to fraction form
    285,237.63/393,612.95 = 156,151.35/x
  3. Step 3: Cross multiply
    285,237.63x = 393,612.95 × 156,151.35
  4. Step 4: Simplify right side
    285,237.63x = 61,463,193,519.98
  5. Step 5: Solve for x
    x = 61,463,193,519.98/285,237.63
  6. Step 6: Final answer
    x = 215,480.66

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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.