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Finding the Fourth Proportional to 370,278.08, 510,601.48 and 316,740.32

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Solution

The fourth proportional to 370,278.08, 510,601.48 and 316,740.32 is: 436,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,278.08 : 510,601.48 = 316,740.32 : x
  2. Step 2: Convert to fraction form
    370,278.08/510,601.48 = 316,740.32/x
  3. Step 3: Cross multiply
    370,278.08x = 510,601.48 × 316,740.32
  4. Step 4: Simplify right side
    370,278.08x = 161,728,076,167.67
  5. Step 5: Solve for x
    x = 161,728,076,167.67/370,278.08
  6. Step 6: Final answer
    x = 436,774.64

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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.