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Finding the Fourth Proportional to 153,250.51, 211,486.76 and 85,270.35

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Solution

The fourth proportional to 153,250.51, 211,486.76 and 85,270.35 is: 117,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,250.51 : 211,486.76 = 85,270.35 : x
  2. Step 2: Convert to fraction form
    153,250.51/211,486.76 = 85,270.35/x
  3. Step 3: Cross multiply
    153,250.51x = 211,486.76 × 85,270.35
  4. Step 4: Simplify right side
    153,250.51x = 18,033,550,045.57
  5. Step 5: Solve for x
    x = 18,033,550,045.57/153,250.51
  6. Step 6: Final answer
    x = 117,673.67

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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.