Home / 346,071.40-518,857.80-212,675.92

Finding the Fourth Proportional to 346,071.40, 518,857.80 and 212,675.92

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Solution

The fourth proportional to 346,071.40, 518,857.80 and 212,675.92 is: 318,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,071.40 : 518,857.80 = 212,675.92 : x
  2. Step 2: Convert to fraction form
    346,071.40/518,857.80 = 212,675.92/x
  3. Step 3: Cross multiply
    346,071.40x = 518,857.80 × 212,675.92
  4. Step 4: Simplify right side
    346,071.40x = 110,348,559,964.18
  5. Step 5: Solve for x
    x = 110,348,559,964.18/346,071.40
  6. Step 6: Final answer
    x = 318,860.67

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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.