Home / 346,707.12-478,313.34-210,719.16

Finding the Fourth Proportional to 346,707.12, 478,313.34 and 210,719.16

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Solution

The fourth proportional to 346,707.12, 478,313.34 and 210,719.16 is: 290,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,707.12 : 478,313.34 = 210,719.16 : x
  2. Step 2: Convert to fraction form
    346,707.12/478,313.34 = 210,719.16/x
  3. Step 3: Cross multiply
    346,707.12x = 478,313.34 × 210,719.16
  4. Step 4: Simplify right side
    346,707.12x = 100,789,785,221.59
  5. Step 5: Solve for x
    x = 100,789,785,221.59/346,707.12
  6. Step 6: Final answer
    x = 290,705.84

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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.