Home / 293,461.28-440,133.60-143,637.20

Finding the Fourth Proportional to 293,461.28, 440,133.60 and 143,637.20

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Solution

The fourth proportional to 293,461.28, 440,133.60 and 143,637.20 is: 215,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,461.28 : 440,133.60 = 143,637.20 : x
  2. Step 2: Convert to fraction form
    293,461.28/440,133.60 = 143,637.20/x
  3. Step 3: Cross multiply
    293,461.28x = 440,133.60 × 143,637.20
  4. Step 4: Simplify right side
    293,461.28x = 63,219,557,929.92
  5. Step 5: Solve for x
    x = 63,219,557,929.92/293,461.28
  6. Step 6: Final answer
    x = 215,427.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.