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Finding the Fourth Proportional to 355,018.68, 489,972.08 and 202,027.10

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Solution

The fourth proportional to 355,018.68, 489,972.08 and 202,027.10 is: 278,823.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,018.68 : 489,972.08 = 202,027.10 : x
  2. Step 2: Convert to fraction form
    355,018.68/489,972.08 = 202,027.10/x
  3. Step 3: Cross multiply
    355,018.68x = 489,972.08 × 202,027.10
  4. Step 4: Simplify right side
    355,018.68x = 98,987,636,458.58
  5. Step 5: Solve for x
    x = 98,987,636,458.58/355,018.68
  6. Step 6: Final answer
    x = 278,823.74

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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.