Home / 209,618.80-314,140.20-134,508.40

Finding the Fourth Proportional to 209,618.80, 314,140.20 and 134,508.40

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Solution

The fourth proportional to 209,618.80, 314,140.20 and 134,508.40 is: 201,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,618.80 : 314,140.20 = 134,508.40 : x
  2. Step 2: Convert to fraction form
    209,618.80/314,140.20 = 134,508.40/x
  3. Step 3: Cross multiply
    209,618.80x = 314,140.20 × 134,508.40
  4. Step 4: Simplify right side
    209,618.80x = 42,254,495,677.68
  5. Step 5: Solve for x
    x = 42,254,495,677.68/209,618.80
  6. Step 6: Final answer
    x = 201,577.80

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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.