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Finding the Fourth Proportional to 228,547.76, 315,366.28 and 127,945.84

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Solution

The fourth proportional to 228,547.76, 315,366.28 and 127,945.84 is: 176,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,547.76 : 315,366.28 = 127,945.84 : x
  2. Step 2: Convert to fraction form
    228,547.76/315,366.28 = 127,945.84/x
  3. Step 3: Cross multiply
    228,547.76x = 315,366.28 × 127,945.84
  4. Step 4: Simplify right side
    228,547.76x = 40,349,803,602.28
  5. Step 5: Solve for x
    x = 40,349,803,602.28/228,547.76
  6. Step 6: Final answer
    x = 176,548.67

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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.