Home / 346,699.64-478,500.41-210,776.18

Finding the Fourth Proportional to 346,699.64, 478,500.41 and 210,776.18

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Solution

The fourth proportional to 346,699.64, 478,500.41 and 210,776.18 is: 290,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,699.64 : 478,500.41 = 210,776.18 : x
  2. Step 2: Convert to fraction form
    346,699.64/478,500.41 = 210,776.18/x
  3. Step 3: Cross multiply
    346,699.64x = 478,500.41 × 210,776.18
  4. Step 4: Simplify right side
    346,699.64x = 100,856,486,682.67
  5. Step 5: Solve for x
    x = 100,856,486,682.67/346,699.64
  6. Step 6: Final answer
    x = 290,904.50

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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.