Home / 346,704.37-478,309.56-210,716.40

Finding the Fourth Proportional to 346,704.37, 478,309.56 and 210,716.40

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Solution

The fourth proportional to 346,704.37, 478,309.56 and 210,716.40 is: 290,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,704.37 : 478,309.56 = 210,716.40 : x
  2. Step 2: Convert to fraction form
    346,704.37/478,309.56 = 210,716.40/x
  3. Step 3: Cross multiply
    346,704.37x = 478,309.56 × 210,716.40
  4. Step 4: Simplify right side
    346,704.37x = 100,787,669,572.26
  5. Step 5: Solve for x
    x = 100,787,669,572.26/346,704.37
  6. Step 6: Final answer
    x = 290,702.05

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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.