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Finding the Fourth Proportional to 152,428.70, 228,643.05 and 149,512.70

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Solution

The fourth proportional to 152,428.70, 228,643.05 and 149,512.70 is: 224,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,428.70 : 228,643.05 = 149,512.70 : x
  2. Step 2: Convert to fraction form
    152,428.70/228,643.05 = 149,512.70/x
  3. Step 3: Cross multiply
    152,428.70x = 228,643.05 × 149,512.70
  4. Step 4: Simplify right side
    152,428.70x = 34,185,039,741.74
  5. Step 5: Solve for x
    x = 34,185,039,741.74/152,428.70
  6. Step 6: Final answer
    x = 224,269.05

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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.