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Finding the Fourth Proportional to 313,484.18, 432,740.52 and 211,647.51

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Solution

The fourth proportional to 313,484.18, 432,740.52 and 211,647.51 is: 292,162.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,484.18 : 432,740.52 = 211,647.51 : x
  2. Step 2: Convert to fraction form
    313,484.18/432,740.52 = 211,647.51/x
  3. Step 3: Cross multiply
    313,484.18x = 432,740.52 × 211,647.51
  4. Step 4: Simplify right side
    313,484.18x = 91,588,453,534.11
  5. Step 5: Solve for x
    x = 91,588,453,534.11/313,484.18
  6. Step 6: Final answer
    x = 292,162.93

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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.