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Finding the Fourth Proportional to 356,303.49, 534,455.10 and 143,071.34

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Solution

The fourth proportional to 356,303.49, 534,455.10 and 143,071.34 is: 214,606.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,303.49 : 534,455.10 = 143,071.34 : x
  2. Step 2: Convert to fraction form
    356,303.49/534,455.10 = 143,071.34/x
  3. Step 3: Cross multiply
    356,303.49x = 534,455.10 × 143,071.34
  4. Step 4: Simplify right side
    356,303.49x = 76,465,209,116.63
  5. Step 5: Solve for x
    x = 76,465,209,116.63/356,303.49
  6. Step 6: Final answer
    x = 214,606.96

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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.