Home / 285,126.13-393,430.23-164,243.81

Finding the Fourth Proportional to 285,126.13, 393,430.23 and 164,243.81

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Solution

The fourth proportional to 285,126.13, 393,430.23 and 164,243.81 is: 226,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,126.13 : 393,430.23 = 164,243.81 : x
  2. Step 2: Convert to fraction form
    285,126.13/393,430.23 = 164,243.81/x
  3. Step 3: Cross multiply
    285,126.13x = 393,430.23 × 164,243.81
  4. Step 4: Simplify right side
    285,126.13x = 64,618,478,714.91
  5. Step 5: Solve for x
    x = 64,618,478,714.91/285,126.13
  6. Step 6: Final answer
    x = 226,631.21

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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.