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Finding the Fourth Proportional to 268,337.80, 370,298.32 and 153,612.64

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Solution

The fourth proportional to 268,337.80, 370,298.32 and 153,612.64 is: 211,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,337.80 : 370,298.32 = 153,612.64 : x
  2. Step 2: Convert to fraction form
    268,337.80/370,298.32 = 153,612.64/x
  3. Step 3: Cross multiply
    268,337.80x = 370,298.32 × 153,612.64
  4. Step 4: Simplify right side
    268,337.80x = 56,882,502,522.76
  5. Step 5: Solve for x
    x = 56,882,502,522.76/268,337.80
  6. Step 6: Final answer
    x = 211,980.95

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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.