Home / 257,397.02-355,207.65-144,220.58

Finding the Fourth Proportional to 257,397.02, 355,207.65 and 144,220.58

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Solution

The fourth proportional to 257,397.02, 355,207.65 and 144,220.58 is: 199,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,397.02 : 355,207.65 = 144,220.58 : x
  2. Step 2: Convert to fraction form
    257,397.02/355,207.65 = 144,220.58/x
  3. Step 3: Cross multiply
    257,397.02x = 355,207.65 × 144,220.58
  4. Step 4: Simplify right side
    257,397.02x = 51,228,253,303.44
  5. Step 5: Solve for x
    x = 51,228,253,303.44/257,397.02
  6. Step 6: Final answer
    x = 199,024.27

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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.