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Finding the Fourth Proportional to 265,730.40, 398,595.60 and 141,314.40

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Solution

The fourth proportional to 265,730.40, 398,595.60 and 141,314.40 is: 211,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,730.40 : 398,595.60 = 141,314.40 : x
  2. Step 2: Convert to fraction form
    265,730.40/398,595.60 = 141,314.40/x
  3. Step 3: Cross multiply
    265,730.40x = 398,595.60 × 141,314.40
  4. Step 4: Simplify right side
    265,730.40x = 56,327,298,056.64
  5. Step 5: Solve for x
    x = 56,327,298,056.64/265,730.40
  6. Step 6: Final answer
    x = 211,971.60

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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.