Home / 257,495.28-355,339.81-142,774.14

Finding the Fourth Proportional to 257,495.28, 355,339.81 and 142,774.14

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Solution

The fourth proportional to 257,495.28, 355,339.81 and 142,774.14 is: 197,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,495.28 : 355,339.81 = 142,774.14 : x
  2. Step 2: Convert to fraction form
    257,495.28/355,339.81 = 142,774.14/x
  3. Step 3: Cross multiply
    257,495.28x = 355,339.81 × 142,774.14
  4. Step 4: Simplify right side
    257,495.28x = 50,733,337,291.51
  5. Step 5: Solve for x
    x = 50,733,337,291.51/257,495.28
  6. Step 6: Final answer
    x = 197,026.28

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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.