Home / 285,223.02-393,612.44-156,159.34

Finding the Fourth Proportional to 285,223.02, 393,612.44 and 156,159.34

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Solution

The fourth proportional to 285,223.02, 393,612.44 and 156,159.34 is: 215,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,223.02 : 393,612.44 = 156,159.34 : x
  2. Step 2: Convert to fraction form
    285,223.02/393,612.44 = 156,159.34/x
  3. Step 3: Cross multiply
    285,223.02x = 393,612.44 × 156,159.34
  4. Step 4: Simplify right side
    285,223.02x = 61,466,258,846.19
  5. Step 5: Solve for x
    x = 61,466,258,846.19/285,223.02
  6. Step 6: Final answer
    x = 215,502.45

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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.