Home / 255,428.07-352,518.43-140,718.47

Finding the Fourth Proportional to 255,428.07, 352,518.43 and 140,718.47

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Solution

The fourth proportional to 255,428.07, 352,518.43 and 140,718.47 is: 194,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,428.07 : 352,518.43 = 140,718.47 : x
  2. Step 2: Convert to fraction form
    255,428.07/352,518.43 = 140,718.47/x
  3. Step 3: Cross multiply
    255,428.07x = 352,518.43 × 140,718.47
  4. Step 4: Simplify right side
    255,428.07x = 49,605,854,116.40
  5. Step 5: Solve for x
    x = 49,605,854,116.40/255,428.07
  6. Step 6: Final answer
    x = 194,206.75

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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.