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Finding the Fourth Proportional to 310,061.93, 427,859.21 and 174,085.20

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Solution

The fourth proportional to 310,061.93, 427,859.21 and 174,085.20 is: 240,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,061.93 : 427,859.21 = 174,085.20 : x
  2. Step 2: Convert to fraction form
    310,061.93/427,859.21 = 174,085.20/x
  3. Step 3: Cross multiply
    310,061.93x = 427,859.21 × 174,085.20
  4. Step 4: Simplify right side
    310,061.93x = 74,483,956,579.91
  5. Step 5: Solve for x
    x = 74,483,956,579.91/310,061.93
  6. Step 6: Final answer
    x = 240,222.84

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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.