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Finding the Fourth Proportional to 357,987.60, 536,981.19 and 105,270.19

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Solution

The fourth proportional to 357,987.60, 536,981.19 and 105,270.19 is: 157,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,987.60 : 536,981.19 = 105,270.19 : x
  2. Step 2: Convert to fraction form
    357,987.60/536,981.19 = 105,270.19/x
  3. Step 3: Cross multiply
    357,987.60x = 536,981.19 × 105,270.19
  4. Step 4: Simplify right side
    357,987.60x = 56,528,111,897.73
  5. Step 5: Solve for x
    x = 56,528,111,897.73/357,987.60
  6. Step 6: Final answer
    x = 157,905.22

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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.