Home / 346,470.45-478,275.08-210,548.13

Finding the Fourth Proportional to 346,470.45, 478,275.08 and 210,548.13

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Solution

The fourth proportional to 346,470.45, 478,275.08 and 210,548.13 is: 290,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,470.45 : 478,275.08 = 210,548.13 : x
  2. Step 2: Convert to fraction form
    346,470.45/478,275.08 = 210,548.13/x
  3. Step 3: Cross multiply
    346,470.45x = 478,275.08 × 210,548.13
  4. Step 4: Simplify right side
    346,470.45x = 100,699,922,666.86
  5. Step 5: Solve for x
    x = 100,699,922,666.86/346,470.45
  6. Step 6: Final answer
    x = 290,645.05

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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.