Home / 346,382.08-478,016.64-210,384.84

Finding the Fourth Proportional to 346,382.08, 478,016.64 and 210,384.84

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Solution

The fourth proportional to 346,382.08, 478,016.64 and 210,384.84 is: 290,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,382.08 : 478,016.64 = 210,384.84 : x
  2. Step 2: Convert to fraction form
    346,382.08/478,016.64 = 210,384.84/x
  3. Step 3: Cross multiply
    346,382.08x = 478,016.64 × 210,384.84
  4. Step 4: Simplify right side
    346,382.08x = 100,567,454,323.74
  5. Step 5: Solve for x
    x = 100,567,454,323.74/346,382.08
  6. Step 6: Final answer
    x = 290,336.77

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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.