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Finding the Fourth Proportional to 310,030.71, 427,809.33 and 174,079.50

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Solution

The fourth proportional to 310,030.71, 427,809.33 and 174,079.50 is: 240,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,030.71 : 427,809.33 = 174,079.50 : x
  2. Step 2: Convert to fraction form
    310,030.71/427,809.33 = 174,079.50/x
  3. Step 3: Cross multiply
    310,030.71x = 427,809.33 × 174,079.50
  4. Step 4: Simplify right side
    310,030.71x = 74,472,834,261.74
  5. Step 5: Solve for x
    x = 74,472,834,261.74/310,030.71
  6. Step 6: Final answer
    x = 240,211.15

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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.