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Finding the Fourth Proportional to 243,720.72, 336,328.30 and 134,822.22

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Solution

The fourth proportional to 243,720.72, 336,328.30 and 134,822.22 is: 186,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,720.72 : 336,328.30 = 134,822.22 : x
  2. Step 2: Convert to fraction form
    243,720.72/336,328.30 = 134,822.22/x
  3. Step 3: Cross multiply
    243,720.72x = 336,328.30 × 134,822.22
  4. Step 4: Simplify right side
    243,720.72x = 45,344,528,054.83
  5. Step 5: Solve for x
    x = 45,344,528,054.83/243,720.72
  6. Step 6: Final answer
    x = 186,051.18

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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.