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Finding the Fourth Proportional to 245,319.80, 367,979.70 and 170,670.20

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Solution

The fourth proportional to 245,319.80, 367,979.70 and 170,670.20 is: 256,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,319.80 : 367,979.70 = 170,670.20 : x
  2. Step 2: Convert to fraction form
    245,319.80/367,979.70 = 170,670.20/x
  3. Step 3: Cross multiply
    245,319.80x = 367,979.70 × 170,670.20
  4. Step 4: Simplify right side
    245,319.80x = 62,803,168,994.94
  5. Step 5: Solve for x
    x = 62,803,168,994.94/245,319.80
  6. Step 6: Final answer
    x = 256,005.30

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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.