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Finding the Fourth Proportional to 210,303.57, 290,210.73 and 114,811.05

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Solution

The fourth proportional to 210,303.57, 290,210.73 and 114,811.05 is: 158,434.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,303.57 : 290,210.73 = 114,811.05 : x
  2. Step 2: Convert to fraction form
    210,303.57/290,210.73 = 114,811.05/x
  3. Step 3: Cross multiply
    210,303.57x = 290,210.73 × 114,811.05
  4. Step 4: Simplify right side
    210,303.57x = 33,319,398,632.57
  5. Step 5: Solve for x
    x = 33,319,398,632.57/210,303.57
  6. Step 6: Final answer
    x = 158,434.77

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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.