Home / 319,200.10-478,800.15-262,119.40

Finding the Fourth Proportional to 319,200.10, 478,800.15 and 262,119.40

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Solution

The fourth proportional to 319,200.10, 478,800.15 and 262,119.40 is: 393,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,200.10 : 478,800.15 = 262,119.40 : x
  2. Step 2: Convert to fraction form
    319,200.10/478,800.15 = 262,119.40/x
  3. Step 3: Cross multiply
    319,200.10x = 478,800.15 × 262,119.40
  4. Step 4: Simplify right side
    319,200.10x = 125,502,808,037.91
  5. Step 5: Solve for x
    x = 125,502,808,037.91/319,200.10
  6. Step 6: Final answer
    x = 393,179.10

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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.