Home / 257,394.40-355,204.32-144,218.08

Finding the Fourth Proportional to 257,394.40, 355,204.32 and 144,218.08

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Solution

The fourth proportional to 257,394.40, 355,204.32 and 144,218.08 is: 199,020.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,394.40 : 355,204.32 = 144,218.08 : x
  2. Step 2: Convert to fraction form
    257,394.40/355,204.32 = 144,218.08/x
  3. Step 3: Cross multiply
    257,394.40x = 355,204.32 × 144,218.08
  4. Step 4: Simplify right side
    257,394.40x = 51,226,885,038.11
  5. Step 5: Solve for x
    x = 51,226,885,038.11/257,394.40
  6. Step 6: Final answer
    x = 199,020.98

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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.