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Finding the Fourth Proportional to 342,661.02, 473,020.47 and 257,798.94

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Solution

The fourth proportional to 342,661.02, 473,020.47 and 257,798.94 is: 355,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,661.02 : 473,020.47 = 257,798.94 : x
  2. Step 2: Convert to fraction form
    342,661.02/473,020.47 = 257,798.94/x
  3. Step 3: Cross multiply
    342,661.02x = 473,020.47 × 257,798.94
  4. Step 4: Simplify right side
    342,661.02x = 121,944,175,764.30
  5. Step 5: Solve for x
    x = 121,944,175,764.30/342,661.02
  6. Step 6: Final answer
    x = 355,874.08

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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.