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Finding the Fourth Proportional to 284,297.51, 392,325.85 and 156,969.83

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Solution

The fourth proportional to 284,297.51, 392,325.85 and 156,969.83 is: 216,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,297.51 : 392,325.85 = 156,969.83 : x
  2. Step 2: Convert to fraction form
    284,297.51/392,325.85 = 156,969.83/x
  3. Step 3: Cross multiply
    284,297.51x = 392,325.85 × 156,969.83
  4. Step 4: Simplify right side
    284,297.51x = 61,583,321,979.11
  5. Step 5: Solve for x
    x = 61,583,321,979.11/284,297.51
  6. Step 6: Final answer
    x = 216,615.76

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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.