Home / 346,479.20-519,718.80-212,926.40

Finding the Fourth Proportional to 346,479.20, 519,718.80 and 212,926.40

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Solution

The fourth proportional to 346,479.20, 519,718.80 and 212,926.40 is: 319,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,479.20 : 519,718.80 = 212,926.40 : x
  2. Step 2: Convert to fraction form
    346,479.20/519,718.80 = 212,926.40/x
  3. Step 3: Cross multiply
    346,479.20x = 519,718.80 × 212,926.40
  4. Step 4: Simplify right side
    346,479.20x = 110,661,853,096.32
  5. Step 5: Solve for x
    x = 110,661,853,096.32/346,479.20
  6. Step 6: Final answer
    x = 319,389.60

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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.