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Finding the Fourth Proportional to 560,090.40, 840,135.60 and 186,113.40

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Solution

The fourth proportional to 560,090.40, 840,135.60 and 186,113.40 is: 279,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,090.40 : 840,135.60 = 186,113.40 : x
  2. Step 2: Convert to fraction form
    560,090.40/840,135.60 = 186,113.40/x
  3. Step 3: Cross multiply
    560,090.40x = 840,135.60 × 186,113.40
  4. Step 4: Simplify right side
    560,090.40x = 156,360,492,977.04
  5. Step 5: Solve for x
    x = 156,360,492,977.04/560,090.40
  6. Step 6: Final answer
    x = 279,170.10

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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.