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Finding the Fourth Proportional to 342,856.80, 514,868.40 and 254,210.40

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Solution

The fourth proportional to 342,856.80, 514,868.40 and 254,210.40 is: 381,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,856.80 : 514,868.40 = 254,210.40 : x
  2. Step 2: Convert to fraction form
    342,856.80/514,868.40 = 254,210.40/x
  3. Step 3: Cross multiply
    342,856.80x = 514,868.40 × 254,210.40
  4. Step 4: Simplify right side
    342,856.80x = 130,884,901,911.36
  5. Step 5: Solve for x
    x = 130,884,901,911.36/342,856.80
  6. Step 6: Final answer
    x = 381,748.01

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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.