Home / 251,875.12-347,590.20-138,698.32

Finding the Fourth Proportional to 251,875.12, 347,590.20 and 138,698.32

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Solution

The fourth proportional to 251,875.12, 347,590.20 and 138,698.32 is: 191,405.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,875.12 : 347,590.20 = 138,698.32 : x
  2. Step 2: Convert to fraction form
    251,875.12/347,590.20 = 138,698.32/x
  3. Step 3: Cross multiply
    251,875.12x = 347,590.20 × 138,698.32
  4. Step 4: Simplify right side
    251,875.12x = 48,210,176,788.46
  5. Step 5: Solve for x
    x = 48,210,176,788.46/251,875.12
  6. Step 6: Final answer
    x = 191,405.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.