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Finding the Fourth Proportional to 202,461.40, 279,392.46 and 111,812.08

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Solution

The fourth proportional to 202,461.40, 279,392.46 and 111,812.08 is: 154,298.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,461.40 : 279,392.46 = 111,812.08 : x
  2. Step 2: Convert to fraction form
    202,461.40/279,392.46 = 111,812.08/x
  3. Step 3: Cross multiply
    202,461.40x = 279,392.46 × 111,812.08
  4. Step 4: Simplify right side
    202,461.40x = 31,239,452,088.92
  5. Step 5: Solve for x
    x = 31,239,452,088.92/202,461.40
  6. Step 6: Final answer
    x = 154,298.31

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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.