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Finding the Fourth Proportional to 355,701.58, 533,553.28 and 145,339.52

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Solution

The fourth proportional to 355,701.58, 533,553.28 and 145,339.52 is: 218,009.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,701.58 : 533,553.28 = 145,339.52 : x
  2. Step 2: Convert to fraction form
    355,701.58/533,553.28 = 145,339.52/x
  3. Step 3: Cross multiply
    355,701.58x = 533,553.28 × 145,339.52
  4. Step 4: Simplify right side
    355,701.58x = 77,546,374,578.51
  5. Step 5: Solve for x
    x = 77,546,374,578.51/355,701.58
  6. Step 6: Final answer
    x = 218,009.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.